Question about Vortex rings?

I'm not sure I understand your question, however being brave, I'll take a shot at it. I think the answer is entropy. All things meet some resistance, and that resistance will slow down and eventually dissipate all the energy into heat which dissipates into the environment. Does that sound like what you are looking for?

Rate of disappearance question?

What is the initial rate of disappearance of A for the reaction: 2A + B --> 3X + Y? The rate of formation for Y is 1.6x10^-2

Korean culture question?

if someone is teaching korean not professionally and i want to learn from them how do i ask the teacher if she can make room for me in the class. Is a gift appropriate?

Embarassing question! Girls answer!?

I never had sex either so idkkk. but rub your clit in circles really fast. or shower head on your cl*t. haha good luck:)

Could my grandmother have been a witch and where does that leave me?

it isn't a hereditary thing. true most "witches" pass the practices down through the family but if you don't want to be a witch your not gonna be. end of story.

I have huge self esteem issues from my brother?

Whenever he call u a name, ask him it is old and call a new. Enjoy what he says. Otherwise u will become a depressed psychic

How do I convince my Mom to let me do age appropriate activities?

I am 15 years old. My Mom wants me to act like a toddler. She took me to Disney World and made me take pictures with the characters like Micky Mouse and Goofy, and made me ride the merry-go-round. She won't let me watch the Twilight Series, saying that I am not old enough for that. She doesn't let me order for myself in a restaurant. She tried to get me to sit on her lap. She won't let me listen to rap music or anything that I like. How do I get my Mom to stop treating me like this? I am tired of having to act like a baby all the time.